Pipe joint



J. SCHUETTE.

PIPE JOINT.

APPLICATION FILED FEB. 20, |922.

1,420,670, Patented June 27, 1922.

ZL@ fa,

l JOHANN SCHUETTE, OF ZEESENKOENIGS-WUSTERHAUSEN, NEAR BERLIN, GERMANY,

UNITED vSTATES PATENT OFFICE.l

' ASSIGNOR, BY MESNE ASSIGNMENTS, TO AMERICAN INVESTIGATION CORPORA-TION, OF NEW lYORK, N. Y., A CORPORATION OF MARYLAND.

' PIPE JOINT.

. Specication if Letters Patent.

20, 1922. Serial'No. 537,663.

To all whom t may concern.'

Be it known that I, JOHANN SGHUETTE, residing atZeesen-Koenigs-Wusterhausen, near Berln, Germany, a citizen of theRepublic of Germany, have invented certain new and useful Improvementsin Pipe Joints; and Ido hereby declare the following tobe a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it pertains to make and use the same, thisbeing a division from an application for a patent upon improvements inpipe joints filed by me on April 25, 1919, bearing Serial No. 292,767.

My invention relates to improvements in joints or couplings forconnecting pipes or tubes which are formed into girders, braces, andother similar parts of framed structures, such as the framing of rigidairships, and is intended to permit the connection of such tubes orpipes by means 'of rivets in cases in which access tothe interior of thetubes or pipes is difficult or impracticable.

In joining or connecting the tubular members of the framing of rigidairships and similar structures it is desirable to bring the tubularmembers which are to be connected into line axiallywith each other andto insert an intermediate sleeve or connecting' memberrof suitablediameter into the ends of the tubular members which are to be'connected.y This sleeve, orintermediate con necting member is 'then secured to thetubular members by means of rivets.l When the interior of the tubularmembers is diiiicult of access, by reason ,of the small internaldiameter of said tubular members, or because of the situations of thesaid tubular members with relation to the` rest of the structure, it isdesirable to perform the operation of riveting wholly or partially fromthe outside of the tubular members, and it is the object of my inventionto facilitate this operation of riveting under these conditions.

Referring to the illustrations, in which similar reference numbersindicate similar parts, Fig. 1 represents in elevation the connection oftwo tubular members by means of an intermediate sleeve, secured bytubular or hollow rivets. Fig. 2 represents one of the tubular membersand the intermediate sleeve in cross section during the operation lar tothat of Fig. 1, with the addition of solid rivets inserted through thehollow or tubular rivets. Fig. 4 shows a joint similar to that shown inFig. 1 with the exception of the fact that one end of the intermediatesleeve has been riveted to one of the tubular members by solid rivets,linserted prior to the insertion of the intermediate sleeve into theother tubular member, the latter only being secured by hollow or tubularrivets.

In Fig. 1 the two tubularmembers toJQe connected are shown at 1 and 2.`At 4 is shown the intermediate sleeve, inserted into the ends of thetubular members 1 and 2. At are shown tubular or hollow rivets,extending entirely through the tubular members and through theintermediate sleeve, and "riveted or ianged over-on the outside oi thetubular members 1 and 2,

the" i holes through which these tubular rivets 'are passed being boredor drilled through the ytubes and intermediate sleeve in position toPatented June 27, 1922.

- riginal application iled April 25, 1919, Serial No. 292,767. Dividedand this application filed February shown secured to the tubular member2, by

means of s olid rivets 6 6, while the tubulai` member 1 is secured tothe same inter'-,

mediate member by means of hollow rivets 3 3, in a manner similar tothat shown in,

Figs. land 2. p

By using tubular rivets of suiiiclent length to extend entirelythroughthe tubular mem- .are first used to vmake the connection, and

bers 1 and 2, the opration of Hanging may the solid rivets aresubsequently inserted through said tubular rivets, as shown in Fig. 3.

I am aware that tubular orhollow thimbles of' fittings have been used tomake a smooth lining or fitting in holes through the Walls of vessels orcontainers, and I do not claim broadly the use of such thimbles ortubular fittings. My invention, on the contrary, relates to the unitingrof two or more members together to form an assembled structure, in themanner above specified.

I claim:

1. A joint comprising two members to be secured together, one of saidmembers being tubular; hollow rivets, passing diametrioally across thetubular member and the other member, and flanged or headed on the eX-terior of the tubular member.

2. A joint comprising two members to be secured together, one of saidmembers being tubular; hollow rivets passing diametrimediate to thefirst named members, one ofv the latter members being tubular; solidrivets securing one of the first named members to the coupling member;and hollow rivets securing the other of' the first named members to thecoupling member.`

4. yA joint comprising a plurality of members to be secured together,hollow rivets crossing said members, and flanged or headed on theexterior of said members.

In testimony whereof I have aliixed my signature.

JOHANN SCHUETTE.

